When you need find you car in a crowded parking lot you can find it easily.
When you at outdoor adventure need return to the starting point.
When you need other positioning functions; The SY-812 Mini GPS positioning system can help you.
Store and locate up to three locations
Utilizes the latest digital technology
High sensitivity SiRF Star III GPS receiver
Self calibrating digital compass
Operates on two AAA Batteries (Not Included)
Compact size stores easily in your pocket or purse
GPS Backtrack